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This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.

A367728 a(n) is the denominator of (R(n) - 1)/(n + 1), where R(n) is the digit reversal of n.

Table of values

n a(n)
0 1
1 1
2 3
3 2
4 5
5 3
6 7
7 4
8 9
9 5
10 1
11 6
12 13
13 7
14 3
15 8
16 17
17 9
18 19
19 2
20 21
21 2
22 23
23 24
24 25
25 26
26 27
27 28
28 29
29 30
30 31
31 8
32 3
33 17
34 5
35 9
36 37
37 19
38 39
39 10
40 41
41 42
42 43
43 4
44 45
45 46
46 47
47 48
48 49
49 50
50 51
51 26
52 53
53 27
54 5
55 28
56 57
57 29
58 59
59 30
60 61
61 62
62 63
63 64
64 13
65 6
66 67
67 68
68 69
69 14
70 71
71 9

List of values

[1, 1, 3, 2, 5, 3, 7, 4, 9, 5, 1, 6, 13, 7, 3, 8, 17, 9, 19, 2, 21, 2, 23, 24, 25, 26, 27, 28, 29, 30, 31, 8, 3, 17, 5, 9, 37, 19, 39, 10, 41, 42, 43, 4, 45, 46, 47, 48, 49, 50, 51, 26, 53, 27, 5, 28, 57, 29, 59, 30, 61, 62, 63, 64, 13, 6, 67, 68, 69, 14, 71, 9]

Started in 1964 by Neil J. A. Sloane | Maintained by The OEIS Foundation Inc.

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